Autostat is a high quality stabilised polyester film, with state of the art lay flat and roll formation properties.

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1 Autostat Product data sheet Heat stabilised polyester film has low residual shrinkage at elevated temperatures. This is essential when tight registration tolerances need to be maintained during multiple printing operations. PRODUCT DESCRIPTION Autostat is a high quality stabilised polyester film, with state of the art lay flat and roll formation properties. It is available in sheets and rolls. Product Range: Autostat CT3, CT4, CT5, CT7 Clear, adhesion treated, 75, 100, 125, 175 micron Autostat CUS5 Clear, untreated, 125 micron Autostat AHU3, AHU4, AHU5, AHU10 Hazy, untreated, 75, 100, 125, 250 micron Autostat HT5 Hazy, adhesion treated, 125 micron Autostat WT3, WT5 Opaque white satin finish, adhesion treated, 125 micron (see separate data sheet) PRODUCT APPLICATIONS Autostat is used for the manufacture of membrane and conventional switch circuitry layers such as computer keyboards.

2 Autostat Product Data Sheet Page 2 of 6 PRODUCT PERFORMANCE Thermal Autostat Test Method Thickness Dimensional stability >75µ 75µ MD 0.2% 150 C/30 minutes TD 150 C/30minutes MD 150 C/30minutes TD 150 C/30 minutes MacDermid Autotype Method 1 + indicates expansion - indicates shrinkage 1 See Test Method Manual MD (machine direction) shrinkage versus temperature for 125μ films TD (transverse direction) shrinkage at 150 o C for 30 minutes TD shrinkage is much lower than MD shrinkage and may even be completely absent. When the film does not shrink at all a small positive expansion may take place. A typical result for Autostat would be MD - 0.1% and TD %. INK ADHESION The adhesion treatment used on the CT and HT grades uses the industry standard chemistry. This treatment enhances adhesion of UV curable dielectric ink, but may not be fully compatible with certain conductive silver inks. See chart below. Autostat ink adhesion summary A selection of inks that have been tested in our laboratories are shown in the table below. This list is not comprehensive, but is representative of inks available from named suppliers.

3 Autostat Product Data Sheet Page 3 of 6 Treated Autostat Untreated Autostat ACHESON Conductive Inks 725A PF410 (477SS) 418SS 423SS 440A 965SS PF407A Dielectric Inks 451SS 452SS 1020SS DUPONT Conductive Inks E Dielectric Inks 5018 SUN CHEMICALS Conductive Inks Dielectric Inks ENGLEHARD Conductive inks S100 S170 S190 S200 C1010 Dielectric inks UVD2010 Recommended Test fully before use, can be subject to variation Not recommended These results are intended as a guide only. Full in-house testing is essential to ensure success under user conditions.

4 Autostat Product Data Sheet Page 4 of 6 CHEMICAL PROPERTIES Chemical Resistance As for Autotex (see solvent resistance data sheet) DIN Coefficient of hygroscopic expansion 1 MD 8 x 10-6 (per 1% RH) TD 7 x 10-6 (per 1% RH) Base film manufacturer s test method (40-80% RH) Moisture vapour transmission rate 3.57g/m²/24 hours ASTM F (MVTR) 1 Oxygen transmission rate 1 8.2ml/m²/24 hours ASTM 25 C, 77% RH 1 This data is typical of polyester films and is derived from base film manufacturer s literature ELECTRICAL PROPERTIES Dielectric strength 1 125µ 175µ 125 kv/mm 105 kv/mm ASTM D mm electrodes in dry 25 C Dissipation factor ASTM D Surface resistivity >10 13 Ω/sq 500Vd.c ASTM 20 C/54% RH Volume resistivity Ωm 100Vd.c ASTM 25 C/1000s 1 This data is typical of polyester films and is derived from base film manufacturer s literature MECHANICAL PROPERTIES Elastic modulus 1 ASTM D % RH (1% secant) 125µ 3600 N/mm 2 Strain rate - 50%/minute Elongation at break 1 ASTM D % RH 125µ % Strain rate - 50%/minute Switch life² >5 million flexes MacDermid Autotype Method³ Tensile strength at break 1 125µ N/mm² ASTM D Yield strength N/mm² ASTM D This data is typical of polyester films and is derived from base film manufacturer s literature 3 See Test Method Manual

5 Autostat Product Data Sheet Page 5 of 6 OPTICAL PROPERTIES Gardner Haze CT3 <1% CT4 <1% CT5 <2% CT7 <3% HT5 16% ±2% ASTM D CUS5 AHU3 <2% 40% ±2% AHU4 43% ±2% AHU5 45% ±2% AHU10 88% ±2% Total luminous transmission CT 93% ±2% CUS 91% ±2% HT 90% ±2% ASTM D AHU3-5 85% ±2% AHU10 66% ±2% Yellowness Index CT <2 CUS <2.5 HT <4 ASTM D AHU3 5 AHU10 <6 <17 1 Adapted to MacDermid Autotype Method, see Test Method Manual PHYSICAL PROPERTIES Density 1 140g/cm 2 film manufacturer s method at ASTM D modified to base 23 C Maximum processing temperature 150 C Thicknesses: Nominal ±5% All Autostat grades detailed in Product Range 1 This data is typical of polyester films and is derived from base film manufacturer s literature 2 Mean thickness MISCELLANEOUS Roll properties: Skew <0.1% (10mm in 10m)

6 Autostat Product Data Sheet Page 6 of 6 IMDS ID-No LEGISLATIVE DIRECTIVES This product does not knowingly contain any phthalates, or substances listed in the European End-of-Life Vehicles (ELV), Restriction of the use of certain Hazardous Substances in electrical and electronic equipment (RoHS) or Waste Electrical and Electronic Equipment (WEEE) Directives. EC Regulation 594/91 classifies ozone depleting substances into a number of different groups, I-VI. Autostat does NOT contain any substance classified in groups I-VI nor have any of the substances been used by MacDermid Autotype during manufacture. For details of the content of each of the groups, please see separate ozone depleting substances document Revision ES #2 The information and recommendations in this publication are believed to be accurate and are offered in good faith but do not constitute specifications. Suggestions concerning uses and applications are only the opinion of MacDermid Autotype Limited and users should carry out their own testing procedures to confirm suitability for their purposes. Except in the case of death or personal injury caused by the materials, MacDermid Autotype Limited MAKES NO WARRANTY OF ANY KIND AND EXCLUDES ANY STATUTORY WARRANTY EXPRESS OR IMPLIED other than that materials conform to their current applicable standard specification. Statements herein therefore should not be construed as guarantees of satisfactory quality or fitness for purpose. The responsibility of MacDermid Autotype Limited for claims arising out of breach of guarantee, negligence, strict liability or otherwise is limited to the purchase price of the material. Suggestions concerning working practices and procedures are based on the practices adopted by existing users of the products and are made in good faith. IT IS THE RESPONSIBILITY OF THE USER TO ENSURE THAT ALL RELEVANT HEALTH AND SAFETY LAWS AND REGULATIONS ARE COMPLIED WITH. MacDermid Autotype Limited does not provide any advice on such laws and regulations and accepts no responsibility, express or implied, for breach of such regulations. Statements concerning the use of products described herein should not be construed as recommending the infringement of any patent and no liability for infringement arising out of such use is assumed MacDermid Autotype Ltd